*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: #0b0f19;
  color: #e2e8f0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.container {
  max-width: 640px;
  width: 100%;
  text-align: center;
}
.logo-mark {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #64748b;
  margin-bottom: 12px;
}
h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 8px;
  line-height: 1.15;
}
h1 .tm { font-size: 0.5em; vertical-align: super; color: #60a5fa; }
.tagline {
  font-size: 1.1rem;
  color: #94a3b8;
  margin-bottom: 40px;
  line-height: 1.6;
}
.launch-btn {
  display: inline-block;
  padding: 18px 48px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 4px 24px rgba(37, 99, 235, 0.35);
}
.launch-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.5);
}
.launch-btn:active { transform: translateY(0); }
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 48px;
  text-align: left;
}
.feature {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 16px;
}
.feature-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: #60a5fa;
  margin-bottom: 4px;
}
.feature-desc {
  font-size: 0.8rem;
  color: #94a3b8;
  line-height: 1.45;
}
.footer {
  margin-top: 56px;
  font-size: 0.78rem;
  color: #475569;
}
.footer a { color: #64748b; text-decoration: none; }
.footer a:hover { color: #94a3b8; }
@media (max-width: 480px) {
  h1 { font-size: 1.8rem; }
  .tagline { font-size: 0.95rem; }
  .launch-btn { padding: 16px 36px; font-size: 1rem; }
  .features { grid-template-columns: 1fr; }
}